Causes and Risk Factors for Diverticulitis

Overview

Diverticulitis is caused by inflammation or infection of small pouches called diverticula that form in the walls of the colon or large intestine. These pouches, known as diverticula, can become inflamed or infected when bacteria or stool gets trapped in them. Eating a low-fiber diet and being overweight are potential causes of diverticulitis. Other risk factors include physical inactivity, smoking, a change in the balance of good bacteria in the digestive tract, and the use of steroids and nonsteroidal anti-inflammatory drugs (NSAIDs). It's important to note that diverticulitis is a complication of a condition called diverticulosis, which is the presence of these pouches without inflammation or infection.

Non-modifiable Risk Factors (Risk Factors You Can't Change)

Non-modifiable risk factors for diverticulitis are factors that cannot be changed or altered. These risk factors include:

Age: Increasing age is a significant non-modifiable risk factor for diverticulitis. As people get older, their risk of developing diverticulitis increases. This is because the walls of the colon weaken over time, making it more susceptible to the formation of diverticula (small pouches).
Sex assigned at birth: While diverticulitis can affect people of all genders, it has been observed that men are more likely to develop the condition compared to women. However, it is important to note that anyone can develop diverticulitis, regardless of their sex assigned at birth.
Genetics: Certain genetic syndromes, such as Marfan syndrome and Ehlers-Danlos syndrome, have been associated with an increased risk of developing diverticulitis. These syndromes affect the connective tissues in the body, including those in the colon.

It is important to remember that while these non-modifiable risk factors may increase the likelihood of developing diverticulitis, they do not guarantee that someone will develop the condition. Additionally, having these risk factors does not mean that someone cannot take steps to reduce their overall risk through lifestyle modifications and regular medical check-ups.

Modifiable Risk Factors (Factors You May Be Able to Change)

Modifiable risk factors for diverticulitis are factors that can be changed or controlled to reduce the risk of developing the condition. Here are some modifiable risk factors for diverticulitis, along with their definitions or thresholds:

Red meat consumption: Consuming a diet high in red meat, such as beef, pork, or lamb, may increase the risk of diverticulitis. Reducing the intake of red meat and opting for leaner protein sources like poultry or fish can help lower the risk.
Medications: Certain medications, including steroids, opiates, and non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen, have been associated with an increased risk of diverticulitis. If you regularly take these medications, it's important to discuss with your healthcare provider about potential alternatives or ways to minimize their use.
Comorbidities: Specific health conditions like obesity, hypertension (high blood pressure), hypothyroidism (underactive thyroid), and type 2 diabetes have been linked to an increased risk of diverticulitis. Managing these conditions through lifestyle changes and appropriate medical treatments may help reduce the risk.
Smoking: Smoking is a well-known independent risk factor for developing diverticulitis. Quitting smoking not only reduces the risk of diverticulitis but also offers numerous other health benefits.
Lifestyle factors: Certain lifestyle choices, such as a sedentary lifestyle or lack of physical activity, can contribute to an increased risk of diverticulitis. Regular exercise and staying physically active can help maintain a healthy digestive system.

It's important to note that while these modifiable risk factors are associated with an increased likelihood of developing diverticulitis, they do not guarantee that someone will develop the condition. Making positive changes in these areas can help reduce the overall risk and promote better digestive health.

Reducing Risks

To prevent or reduce the chances of getting diverticulitis, there are several actions a person can take:

Eat a high-fiber diet: Research suggests that eating a diet high in fiber and low in red meat can lower the risk of developing diverticulitis. Include plenty of fruits, vegetables, and whole grains in your meals to increase your fiber intake.
Stay physically active: Engaging in regular physical activity is another factor that may help lower the risk of diverticulitis. Aim for at least 30 minutes of moderate exercise most days of the week.
Avoid smoking: Smoking is not only harmful to your overall health but may also increase the risk of developing diverticulitis. If you smoke, consider quitting to reduce your risk.
Maintain a healthy weight: Reaching and maintaining a healthy weight is important for overall health and may also lower the risk of diverticulitis. Talk to your doctor about what weight range is appropriate for you.
Discuss medications with your doctor: Some medications may increase the risk of diverticulitis. Talk to your doctor about the medicines you take and whether they could potentially increase your risk.

It's important to note that these actions can help lower the risk of diverticulitis, but they are not foolproof guarantees. If you have had diverticulitis in the past or have concerns about your risk, it's always best to talk with your doctor. They can provide personalized advice and guidance based on your individual health history and circumstances.